curl --request POST \
  --url https://api.pamhq.com/v1/sms-conversations/{id}/close \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "reason": "<string>"
}
'

{
  "data": {
    "conversationId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "status": "queued",
    "endedAt": "2023-11-07T05:31:56Z",
    "endReason": "<string>",
    "alreadyClosed": true
  },
  "meta": {
    "request_id": "<string>"
  }
}